What to Use Where
Confused by all the acronyms and STP features? Figure 3-3 shows the STP
features you might use in your network and where you might use them.
Figure 3-3 Example Switched Topology
Root Bridge
UDLD
UDLD
UDLD
UDLD,
LoopGuard
RootGuard,
UDLD
RootGuard,
UDLD
UDLD
UDLD,
LoopGuard
BackboneFast,
BPDU Filter
PortFast,
BPDU Guard
Forwarding
Blocking